test(image-utils): replace jest with vitest (#5711)

* test(image-utils): replace `jest` with `vitest`

* test(image-utils): replace `jest` API with `vitest` API

* chore: re-sync pnpm lockfile

* make `test/arbitraries` a module and exclude `.mts` from build

* remove outdated jest config

libs/image-utils/.eslintignore

@@ -1,4 +1,4 @@
 bin
 build
 coverage
-jest.config.js
+vitest.config.mts

libs/image-utils/package.json

@@ -14,9 +14,9 @@
     "lint": "pnpm type-check && eslint .",
     "lint:fix": "pnpm type-check && eslint . --fix",
     "test": "is-ci test:ci test:watch",
-    "test:ci": "jest --coverage --ci --reporters=default --reporters=jest-junit --maxWorkers=6",
-    "test:coverage": "jest --coverage",
-    "test:watch": "jest --watch"
+    "test:ci": "vitest run --coverage",
+    "test:coverage": "vitest --coverage",
+    "test:watch": "vitest"
   },
   "packageManager": "[email protected]",
   "dependencies": {
@@ -32,23 +32,19 @@
     "tmp": "^0.2.1"
   },
   "devDependencies": {
-    "@jest/types": "^29.6.1",
     "@types/debug": "4.1.8",
-    "@types/jest": "^29.5.3",
     "@types/jest-image-snapshot": "^6.4.0",
     "@types/node": "20.16.0",
     "@types/pdfjs-dist": "2.1.3",
     "@types/pixelmatch": "^5.2.6",
     "@types/tmp": "0.2.4",
+    "@vitest/coverage-istanbul": "^2.1.8",
     "esbuild": "0.21.2",
     "esbuild-runner": "2.2.2",
     "eslint-plugin-vx": "workspace:*",
     "fast-check": "2.23.2",
     "is-ci-cli": "2.2.0",
-    "jest": "^29.6.2",
-    "jest-junit": "^16.0.0",
-    "jest-watch-typeahead": "^2.2.2",
     "lint-staged": "11.0.0",
-    "ts-jest": "29.1.1"
+    "vitest": "^2.1.8"
   }
 }

libs/image-utils/src/crop.test.ts → libs/image-utils/src/crop.test.mts

@@ -1,10 +1,11 @@
+import { expect, test } from 'vitest';
 import { Rect } from '@votingworks/types';
 import { createImageData, ImageData } from 'canvas';
 import fc from 'fast-check';
-import { arbitraryImageData, arbitraryRect } from '../test/arbitraries';
-import { crop } from './crop';
-import { int } from './types';
-import { RGBA_CHANNEL_COUNT } from '.';
+import { arbitraryImageData, arbitraryRect } from '../test/arbitraries.mjs';
+import { crop } from './crop.js';
+import { int } from './types.js';
+import { RGBA_CHANNEL_COUNT } from './index.js';
 
 /**
  * A slow-but-accurate implementation of `crop` to compare against.

libs/image-utils/src/image_data.test.ts → libs/image-utils/src/image_data.test.mts

@@ -1,11 +1,12 @@
+import { expect, test } from 'vitest';
 import { Buffer } from 'node:buffer';
 import { ImageData, createImageData } from 'canvas';
 import fc from 'fast-check';
 import { writeFile } from 'node:fs/promises';
 import { fileSync } from 'tmp';
 import { randomFillSync } from 'node:crypto';
 import { MaybePromise } from '@votingworks/basics';
-import { arbitraryImageData } from '../test/arbitraries';
+import { arbitraryImageData } from '../test/arbitraries.mjs';
 import {
   RGBA_CHANNEL_COUNT,
   encodeImageData,
@@ -17,7 +18,7 @@ import {
   toDataUrl,
   toImageBuffer,
   writeImageData,
-} from './image_data';
+} from './image_data.js';
 
 test('channels', () => {
   const rgbaImage = createImageData(1, 1);

libs/image-utils/src/jest_match_image.test.ts → libs/image-utils/src/jest_match_image.test.mts

@@ -1,7 +1,8 @@
+import { expect, test } from 'vitest';
 import { sampleBallotImages } from '@votingworks/fixtures';
 import { createImageData } from 'canvas';
 import { basename } from 'node:path';
-import { crop } from './crop';
+import { crop } from './crop.js';
 
 test('matching images', async () => {
   const image = createImageData(1, 1);

libs/image-utils/src/numeric.test.ts → libs/image-utils/src/numeric.test.mts

@@ -1,5 +1,6 @@
+import { expect, test } from 'vitest';
 import fc from 'fast-check';
-import { assertInteger, EPSILON, isCloseToZero } from './numeric';
+import { assertInteger, EPSILON, isCloseToZero } from './numeric.js';
 
 test('isCloseToZero', () => {
   expect(isCloseToZero(0)).toEqual(true);

libs/image-utils/src/pdf_to_images.test.ts → libs/image-utils/src/pdf_to_images.test.mts

@@ -1,3 +1,4 @@
+import { expect, test } from 'vitest';
 import { iter } from '@votingworks/basics';
 import { electionGridLayoutNewHampshireHudsonFixtures } from '@votingworks/fixtures';
 import { Size } from '@votingworks/types';
@@ -9,7 +10,7 @@ import {
   parsePdf,
   pdfToImages,
   setPdfRenderWorkerSrc,
-} from './pdf_to_images';
+} from './pdf_to_images.js';
 
 const pdfNotRequiringPdfjsIntermediateCanvasBuffer = readFileSync(
   join(

libs/image-utils/test/arbitraries.ts → libs/image-utils/test/arbitraries.mts

@@ -2,8 +2,8 @@ import { assert } from '@votingworks/basics';
 import { Rect } from '@votingworks/types';
 import { createImageData, ImageData } from 'canvas';
 import fc from 'fast-check';
-import { int, RGBA_CHANNEL_COUNT } from '../src';
-import { assertInteger } from '../src/numeric';
+import { int, RGBA_CHANNEL_COUNT } from '../src/index.js';
+import { assertInteger } from '../src/numeric.js';
 
 /**
  * Options for building an arbitrary image data.

libs/image-utils/test/arbitraries.test.ts → libs/image-utils/test/arbitraries.test.mts

@@ -1,6 +1,7 @@
+import { expect, test } from 'vitest';
 import fc from 'fast-check';
-import { assertInteger } from '../src/numeric';
-import { arbitraryImageData, arbitraryRect } from './arbitraries';
+import { assertInteger } from '../src/numeric.js';
+import { arbitraryImageData, arbitraryRect } from './arbitraries.mjs';
 
 test('arbitraryImageData has sensible values', () => {
   fc.assert(

libs/image-utils/test/setupTests.ts

@@ -1,4 +1,5 @@
 import { ImageData } from 'canvas';
+import { expect } from 'vitest';
 import { toMatchImage, ToMatchImageOptions } from '../src';
 
 declare global {

libs/image-utils/tsconfig.build.json

@@ -1,7 +1,12 @@
 {
   "extends": "./tsconfig.json",
   "include": ["src"],
-  "exclude": ["**/*.test.ts", "**/*.test.tsx"],
+  "exclude": [
+    "**/*.test.ts",
+    "**/*.test.tsx",
+    "**/*.test.mts",
+    "**/*.test.mtsx"
+  ],
   "compilerOptions": {
     "noEmit": false,
     "outDir": "build",

libs/image-utils/vitest.config.mts

@@ -0,0 +1,10 @@
+import { defineConfig } from '../../vitest.config.shared.mjs';
+
+export default defineConfig({
+  test: {
+    setupFiles: ['test/setupTests.ts'],
+    coverage: {
+      exclude: ['src/jest_pdf_snapshot.ts', 'src/cli/pdf_to_images.ts'],
+    },
+  },
+});